Pump



July 3, 1928. 1,675,390

c. sTARYsKY PUMP Filed July 6, 1925 ATTORNEYS tothesurface.

Patented July 3, 1928.

` l CHARLES sTAnYsxY; or

WICHITA FALLS, '.rnxhs.

l mm2.

appunti@ med f July s,

This! invention` relates, to apparatus `for pumpingwells, particularlyoil wells,` andit consists of the l constructions, combinations and@ arrangementsr. herein'` described and claimed.y w V An `obj ect of `'the invention@ is` to` provide an oil well pump by the use of which thepump-` ing off: fot fany size ot well is facilitated sto algreat extent inrthisthat therpumlp oper.- ates .without requiring the use o-extra tubing-,f pump rodsy additional. casing, etc.

Anothervobjeetof thel-inventionfis to provide a pump in whichy an embodiedrpackerl is arranged ivto be` actuatedfati the desired depth as teh fixrthepump 'invtherworking posi tioni in the well casing; the packer constitut ing a Jpartition past whichthevoilfis pumped A furtherobject'l jthesiinvention is to provide apumpflwhichl is=operated by a liexible cable; itbeingrbymeans of the cable that the `pump is Llowered intothe well feasing `whereupon thef packer'l is set, secondly performing thepumping operation, thirdly4 againv loosening the packer and finally with-` drawing the `pump `roml the well.

Anotherobject` of thefinventionxis to pro`- vide a pump-fwhichcanvbel. lowered into and removed from a wellmin azveryifew minutes, this being` due to the fact that itis suspended 1 whollyby a flexible cable that can be wound upon `a reel or drum thereby .eliminating'the usualstringl;` of :tubing or rody which requires l considerable screwingf up i or unscrevv'ing` in order to place them into orfremove' them from ythe well'.

A further-objectofthe-finvention is to-l provide -Y a l pump whichi is `sel-t 'containing, that 'isto'say, all othe necessary mechanism` is' suspended 'from-the cable, and when withdrawn from lthe -welll no` parts whatever are leftl to otterI obstructions toffsubsequent f operation: Y l v Other objects and advantages ``appear in the following specification,I reference being. hadf-to the accompanyingdrawinggfin which Figure 1 Ais a lsectionalL viewlof the/lower end of a `well casingjshowing'ftheimproved= pump imposition;l j f j Figure 2 "is a- Adetail sectional wiewfof-"the pump.'i

F igu-re 3 *is a detailf horizontal-section onthe nline A3-"-3 offFigure 2. j,

The invention-may a tty vbeMtermedra rumana *and il tahuigle A fpump 9 forJ `oil:

1925. Stlrilal` N0. 41,735.

oreother wells,` in that Aneither rods nor tubes A are requiredtorbe used in order that the` pump may function. It is-quite customary initheart to operate pumps of all kinds;`

especially oil well pumps by a `string of rods.1 `These rods are screwed together, and if the Well is :deep it isobvious that the work of screwing)r up. and unscrewing the sections of rods 1 will consumer a great deal of time: It is also customary tonuse tubingin conne@ tion" with such pumps The tubing also comes in sections and thev work .of screwing. up1 and iunscrewmg vsections again .consumes r much time. By the use of the invention the worklot screwing up `and unscrewing both` rods and tubingiiseliminatedin that neither arel used.

Referringwto `the drawing. the customary well casinf@lr fis indicatedvat 1:1 The'cable 2,x

.75 rod, makes connection at thelcable socket 3' which i now replaces i the customary pump with Vwhat ishereinuknown as thexweight joint la` This .weight 1 joint combines the functions .of connecting; the cableflwith the pump plunger 5 and ieitj'mnding the packer.`

6 withinl the nwell casing l1.

For fthe=rstpurposethe weight'ljoint 4 has suitable connection .wlithl thestem:` Tot the :plunger 5.1 Fonthe-lsecond purpose it carries a I substantial-disllplate (Fig. 2) which is capable ofbeing let 'down upon the lower :abutment- `so Vthat tholweight of the weightjoint is imposed` upon the skeleton joint 10 and sotransters it tothe packer 6.y Theskeleton joint is internally threaded "at 11 to receive the threaded endilQ oflthe' packer. The oppositeUthreadediend` 13 of the 11 packer lis screwed into the upper `r`interJ` nelly -threaded `end of the perforated linerA 14:5 The packer may be of any ordinary construction similar, forfexamplegto that disclosed inU. S. Patent No. 451369,' whichi construction) usuallydnvolves the use `ofia rubber or other flexible body capableof ex-M panson (under pressure).`

Althirdffunetion' ofthe weight joint l4 is to `assist in the extraction of the pumping apparatus from the well "casinp'i-j` To this end `the Adi'slr 8 is brought 'into engagement with the f upper abutment 15 whereupon .an upward pull will first contract the "packer 6:1 After Ahaving f `once 'set the apparatus in the appropriate pesitionin rthewellcasingv lnitedireciprocationfo the `weight joint by means of y. ie` cable 2- actuates the plunger 5. During this reciprocation the disk 8 touches neither of the abutments 9 and 15, but if it should no harm will result.

Oil is drawn into the pump. barrel 16 through the foot valve 17 upon the aforesaid operation of the plunger 5. The oil is first drawn through the strainer 18 which is attached to the lower extremity of the pump barrel. The perforated liner is closed by a plug 19 at the bottom, which, in the event that the perforated liner is used alone (F ig. 2) will rest on the bottom of the well 4. The working conditions of various wells may require the addition of one or more liners 20 (Fig. 1) in which case such additional liner is connected by means of a coupling 21, and the lower end of the added liner is closed by a plug 19a, corresponding with the plug 19.

A cap 22 closes the upper end of the skeleton joint 10. The weight joint 4 passes through an opening in the center of the cap. The weight joint is not intended to bear against the lower and upper abutments 9 and 15, the openings through which the weight joint passes being a trifie larger. These abutments are made conical in shape, as shown, and in practice are first cast and then fixed in the skeleton joint in any appropriate manner.

Provision is made for the application and `removal of the disk 8 by making this disk in sections (Figs. 2 and 3) and connecting the sections by bolts 26 at the lapped joints 24. The sections fit in a peripheral groove 25 in the weight joint 4. Access to the bolts of the disk is had through an opening 26 (Fig. 1) in the wall of the skeleton joint. This skeleton joint, as has been stated, is slotted at 27 for the outlet of the oil. These slots extend into close proximity with the upper end of the packer 6, the arrangement being of especial value in aiding in the disposition of sand after a cessation of operation of the pump.

`The operation is now readily understood. The well bore is made in the usual manner, and the casing 1 is let down as the depth increases, all according to practice. The well casing is generally stopped in the region of a strata of rock or shale. The pumping apparatus is let down by the cable 2. )Vorking conditions vary in different wells, and the pumping apparatus is adjusted to agree with the behavior of various wells.

One well may be of such nature that the perforated liner 14 Vcan be let down all the Way to the bottom (Fig. 2). Another Well may make it desirable to elevate the liner from the bottom, in which case an unporforated liner 20 is added (Fig. 1) and that liner rest-s on the bottom. According to this principle one or more unperforated liners can be supplied as needed, but this is not uncommon in practice. In any event the engagement ofthe pumping apparatus with the bottom of the bore produces a stop for the lower part of such apparatus. Subsequent relaxation of the cable 2 permits the disk S (Fig. 2) to come into engagement with the lower abutment 9 so that the weight of the weight joint 4 is imposed upon the skeleton joint 10 and sortransferred to the packer 6. The packer thereupon expands within the casing 1 and produces a. partition in the well casing. vIhe setting of the packer is done without either the aid or weight of well tubing as is usually the case. Reciprocation of the Weight joint 4, by appropriate operation of the cable 2, in turn reciprocates the pump plunger 5 within the barrel 16 so that oil is drawn through the strainer 18 and tits the valve 17 into the barrel and discharge at theslots 27 into the well casing above the packer. The usual string of sucker rods is eliminated. It is observed that the pump barrel 16 s attached to and suspended from packer 6 but extends no farther than the top of the threaded end 12. It has been ex plained that the slots 27 extend down into proximity with the upper end of the packer. The `advantage of this arrangement is this:

The ditliculties attending the sanding of a well are commonly known and recognized. A well is most likely to sand up after a period of idleness. The sand is carried by the oil which is in a more or less turbulent condition While being pumped, and when pumping ceases thc sand will settle upon the top of the packer 6. Upon starting the pumping apparatus again it will require but a. few strokes of the pump plunger 5 to force oil through the barrel 16 and through the slots 27. 'This action at once dislodges the sand from the top of the packer and the operation of the pumping apparatus proceeds normally. i

It the work of but very few minutes to wind thecable 2 upon an aplnopriate reel at the surface and thus lift the entire apparatus out of the well. In such case the disk 8 will engage thek upper abutment 15, lifting up upon the skeleton 'joint 10 and causel contraction of the packer so that thel apparatus is loosened from the well casing 1. The extremely arduous labor of unscrewing numerous tubing sections and sucker rods 'is entirely eliminated.A It is possible to use any size of pump barrel 16 to agree with the capacity of the well. If the Well is found to have a large How, the pump barrel can be increased in size to correspond.

Relative adjustments of the pump barrel can also be made. If found desirable, the pump barrel may be located down inside of the liner 20 (Fig. 1) instead of inside of the perforated liner 14. This adjustmentis aceomplished by the obvious expedient of lll simply interposing a section of piping between the packer 6 and the pump barrel. lu no case is the actual pumping apparatus disturbed or subjected to strain in either setting or releasing the packer. The packer is set by pumping the liner upon the bottom either directly or indirectly,`and is released by pumping the disk 8 against the abutment 15. In the latter instance an upward pressure of many tons can be exerted to release the packer.

I claim l. Apparatus ot the character described comprising a pumping unit, a tlexible'operating and supporting cable by which said unit is tirst lowered into a well casing, is then operated to pump fluid and is finally abstracted from the well casing, an expansible packer, and means operatively connecting the pumping unit and cable having an abutment member thereon cooperating with said unit in one direction of movement to expand the packer 1n the first instance thereby to sustain the unit in operative position within the well casing and cooperating with said unit in the reverse direction of movement subsequently to release the packer preparatory to the abstraction of the unit from the well. casing. i

2; Apparatus of the character described comprising a reciprocating cable, a weight attached to the cable and having an abutment disc thereon, a pump plunger suspended from the weight, a pump barrel in which the plunger operated to pump by reciprocating movement of predetermined and limited extent, an expansible packer, from which the pump barrel is suspended, means including a skeleton joint by which the packer is suspended and through which the weight passes, said skeleton joint having spaced. upper and lower abutments thereon in the plane of movement of the weight disc and engagedthereby upon reciprocatory motion ot the plunger beyond said predetermined extent in a downward direction to expand the packer and in an upward ydirection to contract and release the packer preparatory to the removal of the pump barrel Jfrom the well.

3. The combination in apparatus of the character described of an eXpansible packer to be iixed in position in a well casing to constitute a partition, a tubular support romwhich the packer is suspendedhaving slots therein adjacent to the packer, a pump plunger, and a pump barrel in which the plunger is operable, said barrel terminating substantially flush with the top of the packer so that any sand accumulating on to of the packer may immediately be dislo ged through the slotted support immediately above the beginning of the operation of the plunger. t

t. The combination in apparatus of the character described comprising an expansible packer arranged to be fixed in a well casing, a plunger, a weight joint to which the plunger is attached for operation by reciprocation ot the joint, a pump barrel in which the plunger operated, said barrel being suspended from the packer and being substantially flush with the top ot the packer, and a skeleton joint from which the packer is supported and in which the weight joint is movable, said joint having openings adjacent to the top of the packer for the prompt dislodgment of sand on top of the packer by operation of the plunger in the barrel.

5. Apparatus of the character described comprising an operating and supporting cable, a weight joint connected to the cable, a plunger suspended from the weight joint, a pump barrel in which the plunger is operable by reciprocation of the cable, an expansible packer from which 'the barrel is suspended, a skeleton cable, an expansible packer from which the barrel is suspended, a skeleton joint from which the packer is supported provided with slots adjacent to the packer for the dislodgment of sand, lower and upper abutments in spaced relationship in the skeleton, joint and a separable disk carried by the weight joint having limited determinate reciprocation between the abutments in ordinary operation of the plunger but being engageable by excess reciprocation with the lower or upper abutments to either expand the packer within a `well casing or to contract said packer preparatory to withdrawal of the pumping apparatus respectively.

CHARLES STARYSKY. 

